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Title:
THRUST BALL BEARING
Document Type and Number:
Japanese Patent JP2012140982
Kind Code:
A
Abstract:

To provide a thrust ball bearing capable of preventing generation of excessive stress caused by contact between a ball and a holder pocket circumferential edge when a ball advancement delay occurs due to relative displacement of a radial direction between a fixed side annular lace member and a rotational side lace member.

The number of holders 14 is equal to that of balls 3. One ball is held by one holder. A prescribed space is formed between adjacent holders. Thus, an interval between the adjacent balls in a locus circumferential direction is changed. Thus, a ball advancement delay is absorbed, generation of excessive stress in the holder pocket circumferential edge is suppressed, and the damage of the holders is prevented.


Inventors:
FUCHIMOTO KAZUYUKI
Application Number:
JP2010292256A
Publication Date:
July 26, 2012
Filing Date:
December 28, 2010
Export Citation:
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Assignee:
NSK LTD
International Classes:
F16C33/42; F16C19/10; F16C33/44
Domestic Patent References:
JP2001050360A2001-02-23
JP2005127342A2005-05-19
JP2008069956A2008-03-27
JP2008019974A2008-01-31
JP2005069322A2005-03-17